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Finding the Fourth Proportional to 42,915.26, 64,382.62 and 15,213.26

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Solution

The fourth proportional to 42,915.26, 64,382.62 and 15,213.26 is: 22,823.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,915.26 : 64,382.62 = 15,213.26 : x
  2. Step 2: Convert to fraction form
    42,915.26/64,382.62 = 15,213.26/x
  3. Step 3: Cross multiply
    42,915.26x = 64,382.62 × 15,213.26
  4. Step 4: Simplify right side
    42,915.26x = 979,469,537.54
  5. Step 5: Solve for x
    x = 979,469,537.54/42,915.26
  6. Step 6: Final answer
    x = 22,823.34

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